The cast-aluminum Weber Intake Manifold is intended for use with a Weber 48 IDA or the Racing Beat-modified 51 IDA carburetor on a 1974-85 12A engine. The manifold comes supplied with four (4) base gaskets, two (2) phenolic spacers, and all mounting ...

The cast-aluminum Weber Intake Manifold is intended for use with a Weber 48 IDA or the Racing Beat-modified 51 IDA carburetor on a 1974-85 13B 4 Port engine. (Although a 1984-85 13B 4-Port engine was never actually produced by Mazda, this engine ...

The Racing Beat-designed and manufactured cast-aluminum intake manifold is intended for use on a 1984-85 13B 6-Port engine with a Weber 48 IDA or the Racing Beat-modified 51 IDA carburetor (additional porting required). These optional items are available ...

The Racing Beat-designed intake manifold for the 1971-73 12A Stock and Street-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake ...

The Racing Beat-designed intake manifold for the 1974-78 12A Stock and Street-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake ...

The Racing Beat-designed intake manifold for the 1979-85 12A Stock and Street-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake ...

This Racing Beat-designed upper manifold mates a sidedraft carburetor to a stock 1984-85 13B 6-Port lower manifold. Although this 13B upper manifold section was originally designed by Racing Beat for use with a Dellorto 48 DHLA carburetor ...

The Racing Beat-designed and manufactured lower intake manifold mates a 12A engine to the Racing Beat Upper Manifold Section for use on applications using a Weber or Dellorto carburetor. Each cast-aluminum lower manifold section is machined in-house by ...

Designed by Racing Beat, this kit comes complete with machined fuel injector plugs, O-rings, Allen head bolts, and a retention plate. The Fuel Injection Plug Kit fits all 1984-92 13B 6-Port and 1987-91 TURBO II engines and is intended for use when removal...

Air Control and Check Valve Cover Plate - 1974-75 (All models) - This plate will cover the opening that remains when the air control and check valve is removed from the side of the stock intake manifold to prepare the engine for racing applications.

Air Control and Check Valve Cover Plate - 1979-80 RX-7 - This plate will cover the opening that remains when the air control and check valve is removed from the side of the stock intake manifold to prepare the engine for racing applications.

Air Control and Check Valve Cover Plate - 1981-92 RX-7 12A and 13B Non-turbo - This plate will cover the opening that remains when the air control and check valve assembly is removed from the side of the stock 12A or 13B engine intake ...